$test-color: blue;

html, body {
    margin: 0;
    padding: 0;
}
.test-div {
    color: $test-color;
    border: 1px solid black;
    padding: 5px 10px;
    text-align: center;
}
.test-div::before {
    content: 'test-div-before:';
    color: pink;
}
li {
    word-break: break-all;
}
.st-group-text {
    min-width: 3em;
    display: flex;
    justify-content: center;
}